茶花不長怎麼回事？梔子花黃葉怎麼回事？/What happened to Camellia japonica? What happened to the Gardenia leaves?

今日提問：茶花、朱頂紅、月季、梔子花、風信子/Question of the day: Camellia japonica, Hippeastrum striatum, rose, gardenia, hyacinth